Buick Repair Questions? Ask a Mechanic for Answers ASAP
Hello, my name is***** does sound like your battery may be the problem. If tech just checked battery charge that isn't enough, a battery load test must be done. You can have battery load tested at your local parts store for free, I do not see anything else that would cause this problem. The alternator is responsible for keeping battery charged but if that was the problem your battery warning light would come on while driving. Let me know how it goes or if you run into more questions, thanks.